LOS ANGELES — Bidding adieu to the shortest month of the year, we commence our four-part series of January 2018 ratings recaps with an overview of all-news operations.

The following scoreboards reflect data from all-news stations that appeared in the top 20 (6+) in January 2018, a ratings period that covered January 4- 31.

Nielsen Audio only releases audience estimates for facilities that subscribe to its services. As a result, ratings stats in this exclusive analysis are limited to stations that pay Nielsen Audio for its data.